V2EX decimal

Decimal

定义 Definition

“Decimal” 指“十进制的;小数的”。常见用法有两类:

  1. 十进制(base-10):以 10 为基数的计数系统(如 09)。
  2. 小数:带有小数点的数(如 3.14)。

发音 Pronunciation (IPA)

/desml/

例句 Examples

A decimal point separates the whole number from the fraction.
小数点把整数部分和小数部分分开。

The engineer converted the measurement from a fraction to a decimal to reduce rounding errors in the final report.
工程师把分数形式的测量值换算成小数,以减少最终报告中的四舍五入误差。

词源 Etymology

“Decimal” 来自拉丁语 decimus(意为“第十”),与 decem(“十”)同源,后来进入法语并传入英语。它之所以与“小数”相关,是因为小数常用以 10 的幂(十分之一、百分之一等)来表示。

相关词 Related Words

文学作品 Literary Works

  • Alice’s Adventures in Wonderland Lewis Carroll
  • Gulliver’s Travels Jonathan Swift
  • The Strange Case of Dr Jekyll and Mr Hyde Robert Louis Stevenson
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